baber/WOPTO huggingface dataset:
Patent GB-621699-A (GB)
Title: Improvements in or relating to propellant compositions
IPC: C06B23/04
Filed: 1946-09-14
Abstract: 621,699. Propellent explosives. PRING, J. N., and BLACKMAN, W. Sept. 14, 1946, No. 27646. [Class 9 (ii)] A flashless propellant comprises 50-65 per cent nitroguanidine having a specific surface of at least 9000 sq. cms. per c.cm. dispersed in nitrocellulose (preferably 16-23 per cent) which is gelatinized by from 0.8 to 1.5 times its weight of a liquid explosive nitric ester, e.g. nitroglycerine, or diethylene glycol dinitrate, part of which may be replaced by other compatible explosive substances such as dinitrotoluene, and a small proportion of a moderant, e.g. urea or urethane derivatives such as diethyl diphenyl urea, the composition having a calorimetric value of 650-825 cals. per gram., 1-3 per cent of a potassium compound such as potassium sulphate or potassium aluminium fluoride, 0.5-3 per cent of carbon black or graphite, and cooling agents such as dibutyl phthalate, diamyl phthalate, cellulose acetate, or oxamide may be added. The propellant may be prepared by incorporating the constituents without the stabilizer, after preliminary mixing, for 15-30 mins. with aqueous acetone. The stabilizer is added and incorporation continued until a plastic dough is obtained which is extruded into cords, tubes, or the like, and stoved to remove solvent. Alternatively, the plastic dough is rolled into sheets which are stoved and further rolled between heated rollers, and finally cut into discs which are filled into the cylinder of a warm press and extruded.
Patent GB-228275-A (GB)
Title: Improvements in or relating to switching arrangements for electric substations
IPC: H04Q9/04
Filed: 1923-11-03
Abstract: 228,275. Reyrolle & Co., Ltd., A., and Minton, R. C. Nov. 3,1923. Switching systems.-In automatic substations in which motor generator sets are started up and switched in according to the demand for power, timed relays control the successive operations and are adjusted and arranged so that two or more consecutive attempts may be made to bring a motor generator set into use, failure to effect this after the determined number of attempts resulting in the locking out or closing down of the substation and the giving of an alarm at a control station. The Specification describes an arrangement in which a motor-converter is started up and connected to direct current outgoing mains in response to a fall of voltage, the sequence of operations comprising connection of three-phase high tension mains to the alternating current side of the motor converter, running- up and synchronizing thereof, and connection of the direct current side to the outgoing mains. The sequence of operations proceeds subject to control by relays responsive to overload, underload, and incorrect polarity. The allowable time intervals for all operations are determined by a group of motor-driven relays. In the arrangement shown, a low-voltage or demand relay 20 starts the action of the substation by switching in the relay motor 86 under the control of which the following actions takes place in order: (1) Closure of a main high-tension switch 12 by a motor 23. (2) Starting of the motor converter 10 with resistances 33 in the rotor circuit. (3) Synchronization of the converter subject to a polarized relay 48, and elimination of the rotor resistance, when synchronism is attained. (4) Connection of the direct current side of the converter to outgoing mains 13, 14 through a resistance 72. (5) Closure of a direct-current circuit breaker 15, thus eliminating the resistance, subject to a loaddiscriminating relay 69. If any of the operations is not completed in a predetermined time, the sequence recommences and may, if necessary be repeated three times after which the timing relays are stopped by mechanical means, the motor converter is put out of action, and an alarm is given at a control station. The group of motor-driven relays is similar in construction and functions to the groups of relays described in Specification 220,051, [Class 38 (v), Electric switches &c.], with the addition of a stop-wheel which acts to lock a relay wheel against further movement after a. determined number of backward and forward runs.
Patent GB-631072-A (GB)
Title: Improvements relating to insulated core assemblies for dynamo electric machines
IPC: H02K3/487
Filed: 1947-10-16
Abstract: 631,072. Insulation for dynamo-electric machines. HOOVER, Ltd. Oct. 16, 1947, No. 27694. Convention date, Oct. 18, 1946. [Class 35] In order to afford greater protection to a core winding near the ends of the slots, slot liners are formed of strips of insulating material having two opposite edges reinforced with narrow bands of material of high dielectric and mechanical strength. The spacing between the bands is less than the slot length, so that the band margins extend into the slot. A large laminated sheet comprising a paper sheet 17 cemented to a treated fabric sheet 25 is cut into strips as shown in Fig. 5. The laminated sheet has two reinforcing tapes 18 stuck to the paper side such that the outer edges of the tapes 18 are spaced from their adjacent parallel edges of the sheet by a distance less than the tape width and the distance between the tape inner edges is less than the slot length. The sheet is then cut into strips having a length equal to the slot periphery plus a length between three and four times the slot width immediately behind its open ends. The strip edges extending beyond the outer edges of the tapes 18 are folded towards each other into a hem-like fold 19 over the tape edges. The resulting liner is then bent into a U-shape across the folds 19 on the outside.
Patent GB-1108386-A (GB)
Title: Manure handling system
IPC: A01C23/00
Filed: 1966-06-21
Abstract: <PICT:1108386/C1/1> Liquid manure is fed through an opening 4, into a partially buried glass-lined storage tank 13; is recycled through an impeller pump unit 5, an external coupling 6 and a jet unit 7; and is withdrawn through the pump unit and coupling (after disconnection from the jet unit) into a spreader tank (8).  The pump unit (Figs. 4-6) has a central shaft operated through an integral gear-box by a tractor drive, the shaft carrying impeller blades within the pump housing, cutter blades just below the housing, and stirrer blades spaced below the cutter blades. The pump unit is supported by a carriage (Figs. 9 and 10) from which it is lowered into the tank and on which it may be transported to another tank after rotation to the horizontal position.  The jet unit (Figs. 7 and 8) is telescopically extensible downwards and has a bent horizontal jet which rotates in use except when locked.
Patent GB-277582-A (GB)
Abstract: 277,582. Croad, A. K., (Freydberg, A., and Marcus, J.). May 28, 1927. Trimmings; materials for binding the seams of garments. - Relates to strips 1 for binding or piping the inside seams of wearing-apparel, said strips being cemented at the raw edges 3 to prevent fraying, and consists in adding an alimentary poison, such as compounds of arsenic, to prevent attack by moths. The cementing materials generally used are carbohydrates and attract moths. Preferably, hard resins of an elastic character are used. Calcium arsenate, sodium arsenate, or fluorides, such as zinc and sodium fluorides, are mentioned as suitable poisons. Pigment may be used to indicate that the edge of the strip has been treated, and different colours may be used to distinguish different material of which the strip is made.
Patent GB-144188-A (GB)
Title: Improvements in or relating to boots and shoes
IPC: A43C13/04
Filed: 1919-11-10
Abstract: 144,188. Green, T. W. Nov. 10, 1919. Protectors, construction of. - Three rubber pads secured by nails and screws passing through leather washers are characterized by the enlargement c' at the end of the central pad.
Patent GB-961379-A (GB)
Title: Haze meter
IPC: G01N21/53
Filed: 1962-07-19
Abstract: 961,379. Photo-electric turbidometers. ESSO RESEARCH & ENGINEERING CO. July 19, 1962 [Sept. 1, 1961], No.27812/62. Headings G1A and G1X. Apparatus for measuring haze comprises three small containers in a material mounted in a larger container, one of the containers housing a radiation source and the other two housing detectors respectively sensitive to radiation transmitted through and scattered by the material. Light from a lamp 34 is reflected by a mirror 40 through a window 39 into the container 10 which may be lowered into a fluid steam to be tested. Aligned with window 39 is a window 27 so that light transmitted through the fluid is reflected by a prism 29 to a photo-cell 21. A similar window admits scattered light to a second photo-cell 52 and is screened from direct illumination by a baffle 19. The tube 18 carrying photo-cell 52 may be positioned by rotating a knob 49 to receive light scattered at any, desired angle, 17 degrees being preferred for small size haze particles and 3 degrees -16 degrees for larger particles. The photo-cells are connected in a bridge circuit. The apparatus is calibrated by using a clear test sample and polarizing filters 24, 25 are adjusted until the ratio of resistances of cells 21 and 52 is between 1. 5 and 30 to 1. A substantially opaque sample is then tested to provide a second fixed point on the calibration scale. The test samples may be solid liquid or gaseous and provision is made in chambers 31, 42 and 56 for the use of dessicants to combat fogging by water vapour.
Patent GB-1006139-A (GB)
Title: Improvements in and relating to sulphobetaines
IPC: C25D3/02
Filed: 1963-07-15
Abstract: Sulphobetaines containing free hydroxy groups and which are obtained from the reaction of heterocyclic bases of aromatic character, epichlorhydrin, base-fixing agents, water, and salts of sulphurous acid (see Division C2) are used, especially in conjunction with known brightening agents, as additives for galvanic baths, e.g. acid nickel baths.  In an example a sulpho-betaine of the defined type and which is derived from pyridine is added to a nickel bath of the Watts type containing sodium ditolyl disulphimide as brightening agent and the bath used for nickel-plating of iron or copper sheets.  Specification 815,916 is referred to.ALSO:A sulphobetaine containing a hydroxy group is obtained by reacting a heterocyclic base of aromatic character and which may or may not be substituted with epichlorohydrin in the presence of water and a base-fixing agent at a pH value in the range 7 to 8 and then reacting the resultant quaternary salt which contains chlorine in organic combination with a neutral salt of sulphurous acid.  In a modification of the process the base fixing agent is an acid salt of sulphurous acid and the formation of the sulphobetaine is completed without further addition of sulphite. The heterocyclic base may be pyridine, 3- or 4-chloropyridine, 2-, 3- or 4-methyl (or ethyl) pyridine, 2,5-, 2,6- or 3,5-dimethyl pyridine, 2-methyl-5-ethyl pyridine, 4-methyl-3-ethyl pyridine, 4-isopropyl (or t.-butyl)-pyridine, 2,3,4- or 2,4,6-trimethyl pyridine, 2,4- or 3,4-diethyl pyridine, 3,5-dimethyl-2-ethyl pyridine, 2,6-dimethyl-4-ethyl pyridine, quinoline, 2-chloro (or 3-bromo)-quinoline, 2-methyl quinoline, 4-methyl quinoline or isoquinoline. The base-fixing agent may be a mineral acid such as hydrochloric, sulphuric, or phosphoric acid, an acid salt, e.g. sodium sulphate, or an organic carboxylic or sulphonic acid.  In the modified process the acid salt of sulphurous acid may be potassium or sodiumbisulphite or -pyrosulphite.  In carrying out the process the base, e.g. pyridine, is conveniently dissolved or suspended in water, a few drops of a phenol-phthalein solution added and then an equimolar quantity of epichlorhydrin. When the mixture is a reddish colour an aqueous mineral acid is added until the pH is between 7 and 8.  The pH is maintained within this range and a neutral sulphite is then added and the mixture heated up to about 1000 DEG  C. until sulphite can no longer be detected and the sulphobetaine formed is then recovered, e.g. by dehydrating the reaction product, adding a low alcohol such as methanol, ethanol or isopropanol, heating and then allowing to cool to crystallize out the sulphobetaine.  The sulphobetaines are valuable as pickling agents and as additives for galvanic baths especially acid nickel baths (see Division C7).  Specification 815,916 is referred to.
Patent GB-403786-A (GB)
Title: Improved record lifting means for use with automatic gramophones
IPC: G11B17/16
Filed: 1932-10-07
Abstract: 403,786. Magazine gramophones. MANN, G. S., 101, Rosehill Road, Ipswich, Suffolk. Oct. 7, 1932, No. 27896. [Class 40 (ii).] Each record for use in an automatic magazine gramophone wherein the records are lifted by electromagnetic means, has associated with it a separate iron or steel disc which is attracted by the electro-magnetic lifting device. The invention is described in its application to the automatic magazine gramophone described in Specification 402,779. A loose iron or steel disc 2 having a central aperture 2a is placed beneath each record in the magazine. When the lifting magnet is energized, it attracts the disc 2 which lies beneath the top record of the pile to lift both the record and the disc for transfer to the turntable, the turntable being provided with a central recess to receive the disc 2. The edge of the disc 2 may be covered with enamel, celluloid, or rubber as shown at 2b. The records used are ordinary records. Specification 403,773 also is referred to.
Patent GB-313824-A (GB)
Title: A binding agent for materials used for road construction
IPC: C08L95/00
Filed: 1928-09-29
Abstract: 313,824. Hopkirk, F. C., and Tennant & Co., Ltd., C. Sept. 29, 1928. Compositions containing tar, tar oil. and bitumen.-As a binding agent in road construction, 61 per cent tar is mixed with 5 per cent light coal tar oil containing a minimum of 5 per cent naphthalene and less than 1 per cent water, and 34 per cent bitumen, preferably steam refined from heavy Mexican crude. The bitumen is heated to between 100‹ F. and 200‹ F. and incorporating temperature not exceeding 300‹ F. to the mixture of tar and tar oil prepared by heating the tar to between 100‹ F. and 200‹ F. and incorporating the oil. The mixture is applied hot by heating to between 240‹ F. and 280‹ F.
Patent GB-535311-A (GB)
Title: Improvements in and relating to extrusion apparatus particularly for applying sheathing to electric cables
IPC: B21C23/30
Filed: 1939-10-17
Abstract: 535,311. Extrusion moulding-machines. SHAW & SONS (SALFORD), Ltd., J., and CLARKE, T. T. Oct. 17, 1939, No. 28046. [Class 87 (ii)] [Also in Group XXII] Extrusion apparatus for applying a number of continuous sheathings of lead alloys, synthetic resins, or other thermo-plastic material to a long core, e.g. an electric cable, comprises co-axial nozzles 45 in a head 41 through which the core is fed, a number of independent means for feeding the plastic material to the nozzles combined in a single unit attachable to said head and means for controlling the temperature of the extruded material. The core may be fed through a sleeve 5 and bore 53 in the head and the plastic material through passages 50 to the three successively larger nozzles 45, 45' and 47 by screws 9 driven by gears 23, 24, enclosed in an oil bath 28, from a hollow shaft 25. The screws are surrounded by jackets 6a, 6b supplied with fluid the temperature of which may be subject to thermo-static control. The nozzle 47 may be heated externally by an electric heater 66. Each of the nozzles may apply the same material or a plurality of different materials may be applied and the separate feed and temperature control means may be independently adjustable to suit the diverse materials fed. In a modification the material is fed by a plunger press. The means for controlling the temperature of the material may comprise a tube coiled about the feeding means or electric heating elements may be used.
Patent GB-1241789-A (GB)
Title: Improvements in or relating to devices for fitting sliders on sliding clasp fasteners
Inventor: HEIMBERGER HELMUT
IPC: A44B19/64
Filed: 1970-07-10
Abstract: 1,241,789. Sliding clasp fasteners. OPTIHOLDING A.G. 10 June, 1970 [18 June, 1969], No. 28071/70. Heading E2S. A device for presenting sliders for fitting to sliding clasp fasteners comprises a magazine 2, preferably made of transparent plastics material, having parallel guide flanges to accommodate sliders and feed them to a magazine holder 4 which has attached a curved fitting track 6 at the end of which is a fitting mount 7 adapted to grip the slider and release any locking elements on the slider while sliding clasp fastener stringers are fed to the slider for insertion of the slider. The magazine holder 4 has a coupler 10 which retracts a slider retaining spring 11 on insertion of the magazine into the holder 4.
Patent GB-1178594-A (GB)
Title: Hydrocarbon Conversion Catalysts
Inventor: MATTOX WILLIAM JUDSON
IPC: C10G11/05
Filed: 1967-06-19
Abstract: 1,178,594. Cracking catalysts. ESSO RESEARCH & ENG. CO. 19 June, 1967, No. 28073/67. Heading B1E. [Also in Divisions C1 and C5] A hydrocarbon conversion catalyst comprises a crystalline alumino-silicate zeolite containing manganese cations and 0.01 to 5.0 weight % of a platinum group metal or metal compound and less than 10% by weight of alkali metal oxide. The zeolite may also contain cationic species such as hydrogen or hydrogen precursor ions to lower the alkali metal oxide content so that the zeolite contains no more than 0.25 equivalent per gram atom of aulminium of alkali metal cations. Other mono- or polyvalent ions may be substituted for a portion of the residual alkali metal oxide, the metals preferably belonging to Groups IB, IIA, IIB and IIIA of the Periodic Table as well as the Lanthanum and Actinium series. The zeolite may be a synthetic Faujasite having uniform pore openings of between 6 and 15A and a silica to alumina mole ratio above about 3. The catalyst usually contains 0.5 to 10 weight % of manganese oxide and may be mixed in an inorganic oxide matrix such as clay, silica gel, or a cogel of silica and at least one other metal oxide from Groups IIA, IIIA, IVB of the Periodic Table, and mixtures thereof. The mixture can contain between 1 to 50 wt % of the zeolite and between 50 to 99 wt % of the matrix. The catalyst may be prepared by adding sodium aluminate and sodium hydroxide to an aqueous sol of colloidal silica then heating and aging. The zeolite product is then subjected to cationic exchange with a manganese sulphate solution and is then treated with a platinum or palladium salt or ammonium complex e.g. ammonium chloroplatinate or palladium chloride. The catalysts can be used for cracking and hydrocracking processes under conditions comprising temperatures between 500 to 1000‹F, pressures between 0 to 500 p.s.i.g. and space velocities between 0.2 to 20 volumes of feed per volume of catalyst per hour.
Patent GB-1102286-A (GB)
Title: Arrangement comprising a cyclic store in the form of a delay line with feedback and a data-processing device
IPC: G11C21/02
Filed: 1965-07-02
Abstract: 1,102,286. Electric data processing devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 2 July, 1965 [20 July, 1964], No. 28089/65. Heading G4A. A cyclic store in the form of a delay line M, such as a magneto-atrictive delay line, having two feedback paths, in combination with a data processing device R is characterized in that the second feedback path LV2, IR2 receives information bits with a delay in comparison with the first path LV1, IR1 the data processing device is connected with the first feedback path and introduces a delay corresponding to the delay between the two paths, and the delay line input is connected via a switch U to either of the two paths. The cyclic store described may work with selfsynchronization. The timing pulses for this can be produced by writing in the delay line via a coil S a pulse produced by switch TS. When this pulse is received at reading coil LV1 the pulse is applied back to the input via the OR gate and a time later the pulse is received by coil LV2 and also applied to the input (Fig. 2b, not shown). The two pulses produced in turn form three pulses and so on until the line is almost filled with pulses separated by distance a which is chosen such that distance 1 is not an integral multiple of a and so the series of pulses spaced by a produce another series of pulses spaced between the first series, and so on until the delay line is filled with pulses corresponding to all its bit position. Thus the pulses are selfsynchronizing and can be applied to input ADE of R. If processed information is required in the delay line it is fed from the computer via a device G having a delay such as to increase the total delay time of M and G to a multiple of that between L1 and L2. The delay of R corresponds to that between L1 and L2 so that information processed by the computer can be written back in the same position the unprocessed information would have been written in.
Patent GB-483156-A (GB)
Title: Improvements in and relating to the art of soldering
IPC: B23K35/34
Filed: 1936-10-16
Abstract: For use in soldering a mixture consisting of oxides of silver, copper and tin may be made by adding a slight excess of a hot caustic soda solution containing sodium stannate to neutral nitrates of silver and copper.  The precipitate is washed and heated to 350 DEG  C.  Another mixture of oxides of silver and tin may be made as in the previous method but the alkaline solution resulting from excess of sodium stannate is neutralized by heating with sulphuric or nitric acid.  A further mixture consisting of oxides of lead and tin is made by dissolving a mixture of stannous and lead chlorides in a hot 25 to 30 per cent solution of sodium chloride and precipitating by addition of caustic soda or sodium carbonate solution and heating the washed precipitate to 350 DEG  C.